On 2021-04-18, Michael Forney <mforney@xxxxxxxxxxx> wrote: > AC_SUBST_FILE[0] is similar to AC_SUBST, but instead of replacing > a variable with its value, it replaces a variable with the contents > of the file named by the value. This is exactly what we want in > order to insert the contents of .depend at the end of the Makefile. > > Using AC_SUBST for this purpose poses some problems if $as_echo > involves running an external command (i.e. printf is not built-in), > in which case the size of .depend may exceed the operating system's > argument size limit. In particular, since autoconf 2.70, $as_echo > no longer uses `print -r` on ksh shells[1], causing the following > message when creating config.log on Linux with oksh: > > ./configure: printf: Argument list too long > > AC_SUBST_FILE requires the substitution string to be on its own > line, so drop the unneeded leading comment (the first line of .depend > has a '#' of its own). > > [0] > https://www.gnu.org/software/autoconf/manual/html_node/Setting-Output-Variables.html > [1] > http://git.savannah.gnu.org/gitweb/?p=autoconf.git;a=commitdiff;h=2b59b6f8a79b8bf77e178ff4e5aa0ede433d39cf;hp=bea5177adc0c924fe7483509a5e38a6d49319fcb Ping on this patch. _______________________________________________ openssh-unix-dev mailing list openssh-unix-dev@xxxxxxxxxxx https://lists.mindrot.org/mailman/listinfo/openssh-unix-dev
